Adjustable tower crane conversion joint

Abstract

The utility model discloses an adjustable tower crane conversion joint, which relates to the technical field of building construction equipment, and comprises a base main body, the base main body comprises four bottom feet fixed on concrete through bolts, each bottom foot is provided with a supporting leg, one end of each supporting leg far away from the corresponding bottom foot is fixedly provided with a mounting seat plate through a connecting frame, and the mounting seat plate is provided with a connecting rod. A top plate is fixedly mounted on the upper surface of the mounting base plate, and a fixing assembly used for fixing the tower body is arranged on the upper surface of the top plate. The fixing assembly is designed and matched with the limiting assembly, a worker pulls a pull handle to drive a limiting rod to be separated from a limiting hole, unlocking and pulling of the second fixing frame are achieved, and height adjustment is completed; after adjustment is completed, the limiting rod is reset and fixed through elastic potential energy of the limiting spring; through the design, the universality of the tower crane is improved, conversion joints of different specifications do not need to be frequently replaced, the equipment purchase cost and construction time are reduced, the construction efficiency is improved, and the construction cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction equipment, and specifically relates to an adjustable tower crane conversion joint. BACKGROUND

[0002] Tower crane, also known as tower crane, is the most commonly used hoisting equipment on the construction site. It can be lifted by itself and gradually raised in sections. Most of them are square frame columnar structures. The metal frame that constitutes the tower crane and lifts the tower crane section by section is called standard section. The tower crane is raised by stacking several standard sections one by one. The adjacent standard sections are connected and fixed by bolts. In the process of construction, the tower crane is mainly used to hoist construction materials such as steel bars, concrete, bricks and wood or construction equipment on the construction site.

[0003] The existing patent (authorization announcement number: CN221955713U) discloses an adjustable tower crane conversion joint. The position of the fixing structure can be adjusted through the adjusting structure, so that the tower crane of different specifications can be adapted. The extension block is in contact with the mounting seat plate. When the fixing frame is subjected to the tilting force applied by the tower crane, the contact between the extension block and the mounting seat plate can support the fixing frame, prevent the fixing frame from bending backward, and make the device more stable.

[0004] However, the above technical scheme still has certain defects. The above device and the existing tower crane conversion joint are mostly fixed in size. When the construction demand changes, different specifications of conversion joints often need to be replaced, which not only increases the construction cost and time, but also makes the operation cumbersome and reduces the construction efficiency. At the same time, the conversion joint of fixed size has poor universality, which causes waste of resources. Therefore, we propose an adjustable tower crane conversion joint. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an adjustable tower crane conversion joint to solve the problems in the background art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] An adjustable tower crane conversion joint comprises a base body, the base body comprises four bottom feet fixed on concrete by bolts, and each bottom foot is provided with a supporting leg, the end of the supporting leg away from the bottom foot is fixedly installed with a mounting seat plate through a connecting frame, the upper surface of the mounting seat plate is fixedly installed with a top plate, the upper surface of the top plate is provided with a fixing assembly for fixing the tower body, the fixing assembly comprises a connecting plate slidingly arranged on the upper surface of the top plate, the top of the connecting plate is fixedly installed with a first fixing frame, the right angle of the first fixing frame is provided with an extension block, the first fixing frame is slidingly provided with a second fixing frame, the top of one side of the extension block is provided with a limiting assembly for fixing the second fixing frame, and the lower side of the mounting seat plate is provided with a moving assembly.

[0008] On the basis of the above technical solutions, the utility model further provides the following optional technical solutions:

[0009] In an alternative: The limiting assembly includes a plurality of limiting holes opened in one side of the second fixed frame, and the plurality of limiting holes are equidistantly distributed from top to bottom, a through hole matched with the limiting hole is opened in the top of one side of the extension block, and a fixed sleeve is fixedly arranged outside the through hole, a limiting rod matched with the limiting hole and the through hole is longitudinally arranged in the fixed sleeve, a fixed ring is sleeved on the outer wall of the limiting rod, a limiting spring is fixedly connected between one side of the fixed ring and the top of the inner cavity of the fixed sleeve, the limiting spring is movably sleeved on the outer wall of the limiting rod, and a pull handle is fixedly connected to the end of the limiting rod away from the limiting hole and extending to the outside of the fixed sleeve.

[0010] In an alternative: The moving assembly includes support frames fixedly connected to the inner sides of four corners of the connecting frame, each group of support frames is connected with a lead screw through a bearing on one side, driven conical teeth are fixedly installed at the other ends of the lead screws, four groups of driven conical teeth are engaged with the same driving conical teeth, and the top of the driving conical teeth is fixedly connected with a rotating shaft.

[0011] In an alternative: The top end of the rotating shaft extends to above the top plate and is fixedly connected with an extension head.

[0012] In an alternative: The outer walls of the ends of the four groups of lead screws away from the support frames are fixedly sleeved with fixed seats, the top of each group of fixed seats is fixedly connected with the bottom of the mounting seat plate, the outer walls of the four groups of lead screws are threadedly connected with sliding blocks, and the top of each group of sliding blocks is fixedly connected with the bottom of the corresponding connecting plate.

[0013] In an alternative: The top plate is provided with a gap slot matched with the connecting plate, and the mounting seat plate is provided with a sliding groove matched with the sliding block.

[0014] In an alternative: The center of the top plate and the mounting base is provided with a circular groove matched with the rotating shaft.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model discloses a fixing assembly and a limiting assembly are designed, a staff pulls a pull handle to drive a limiting rod to separate from a limiting hole, the unlocking and pulling of the second fixed frame are realized, height adjustment is completed, the elastic potential energy of a limiting spring is utilized to reset the limiting rod after adjustment, this design improves the versatility of the tower crane, different specification conversion joints are not needed to be frequently replaced, equipment procurement cost and construction time are reduced, construction efficiency is improved, and construction cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is overall structure schematic view of the utility model;

[0018] Figure 2 It is bottom view of mounting seat board of the utility model;

[0019] Figure 3 It is partial structure schematic view of mobile assembly of the utility model;

[0020] Figure 4 It is fixed frame structure schematic view of the utility model;

[0021] Figure 5 It is limiting assembly structure schematic view of the utility model.

[0022] Figure mark annotation: 100, base main body;200, fixed assembly;300, mobile assembly;

[0023] 101, bottom foot;102, support leg;110, connecting frame;120, mounting seat board;130, top plate;131, let place slot;

[0024] 210, connecting plate;220, extension block;230, first fixed frame;240, second fixed frame;250, limiting assembly;251, limiting hole;252, fixed sleeve;253, limiting rod;254, fixed ring;255, limiting spring;256, pull handle;

[0025] 310, support frame;320, screw;330, driven conical teeth;340, driving conical teeth;350, rotation shaft;360, extension head;370, sliding block. Specific implementation

[0026] In order to make the utility model's purpose, technical scheme and advantage more clearly, following combining with the drawing and example, the utility model is further detailed.

[0027] In one embodiment, as Figures 1-5As shown, an adjustable tower crane adapter includes a base body 100, the base body 100 includes four bottom feet 101 fixed on the concrete by bolts, and each bottom foot 101 is provided with a support leg 102, the end of the support leg 102 away from the bottom foot 101 is fixedly installed with a mounting seat plate 120 through a connecting frame 110, the upper surface of the mounting seat plate 120 is fixedly installed with a top plate 130, the upper surface of the top plate 130 is provided with a fixing assembly 200 for fixing the tower body, the fixing assembly 200 includes a connecting plate 210 slidingly arranged on the upper surface of the top plate 130, the top of the connecting plate 210 is fixedly installed with a first fixing frame 230, the right angle of the first fixing frame 230 is provided with an extension block 220, the first fixing frame 230 is slidingly arranged with a second fixing frame 240, the top of one side of the extension block 220 is provided with a limiting assembly 250 for fixing the second fixing frame 240, the mounting seat plate 120 is provided with a moving assembly 300 below, the limiting assembly 250 includes a plurality of limiting holes 251 opened on one side of the second fixing frame 240, and the plurality of limiting holes 251 are equally distributed from top to bottom, the top of one side of the extension block 220 is provided with a through hole matched with the limiting hole 251, and the through hole is fixedly provided with a fixed sleeve 252 outside, the fixed sleeve 252 is longitudinally provided with a limiting rod 253 matched with the limiting hole 251 and the through hole inside, the limiting rod 253 is fixedly sleeved with a fixed ring 254 outside the wall, the fixed ring 254 is fixedly connected with a limiting spring 255 between one side and the top of the inner cavity of the fixed sleeve 252, the limiting spring 255 is movably sleeved on the outer wall of the limiting rod 253, and the end of the limiting rod 253 away from the limiting hole 251 penetrates to the outside of the fixed sleeve 252 and is fixedly connected with a pull handle 256;

[0028] In this embodiment, when the height of the tower crane adapter needs to be adjusted, the pull handle 256 is pulled to drive the limiting rod 253 to disengage from the limiting hole 251, thereby releasing the fixing of the second fixing frame 240, and then the staff can freely pull the second fixing frame 240. It is worth noting that in the process of disengaging the limiting rod 253 from the limiting hole 251, the fixed ring 254 is driven to move, thereby compressing the limiting spring 255 to have elastic potential energy. After adjusting the height of the second fixing frame 240 and the limiting hole 251 and the through hole are in the same straight line, the pull handle 256 is released, and the elastic potential energy of the limiting spring 255 is used to push the fixed ring 254 and the limiting rod 253 to reinsert into the limiting hole 251, thereby completing the fixing of the second fixing frame 240 and achieving the adjustment of the height of the adapter. In the whole use process, the limiting rod 253 can prevent the second fixing frame 240 from sliding back into the first fixing frame 230, and the extension block 220 supports the fixing frame, thereby improving the versatility of the tower crane, reducing the need to frequently replace different specifications of adapters, reducing equipment procurement costs and construction time, improving construction efficiency, and reducing construction costs.

[0029] In one embodiment, as Figure 2 andFigure 3 As shown, the moving assembly 300 comprises support frames 310 fixedly connected to the inner four corners of the connecting frame 110, each group of support frames 310 is connected with a lead screw 320 through a bearing on one side, the other end of the lead screw 320 is fixedly installed with a driven bevel gear 330, the four groups of driven bevel gears 330 are engaged with the same driving bevel gear 340, the top of the driving bevel gear 340 is fixedly connected with a rotating shaft 350, the top end of the rotating shaft 350 extends to above the top plate 130 and is fixedly connected with an extension head 360, the outer wall of the far end of the four groups of lead screws 320 is fixedly sleeved with a fixed seat, and the top of each group of fixed seats is fixedly connected with the bottom of the mounting seat plate 120, the outer wall of the four groups of lead screws 320 is threadedly connected with a sliding block 370, and the top of each group of sliding blocks 370 is fixedly connected with the bottom of the corresponding connecting plate 210; the staff can reduce the force required to rotate the extension head 360 by using a wrench, and the extension head 360 without a wrench can avoid loosening of the device on the tower crane due to accidental bumping after installation, the extension head 360 drives the driving bevel gear to rotate, thereby driving the four groups of driven bevel gears 330 engaged with the driving bevel gear to rotate, thereby driving the four groups of corresponding lead screws 320 to rotate, driving the sliding block 370 on the corresponding lead screw 320 to start sliding along the direction of the lead screw 320, so that the fixed frame arranged above is moved together, the position of the fixed frame is adjusted, and since the lead screw 320 is arranged in a cross shape, during the placement of the tower crane, the position of the tower crane will be offset, the four corners of the tower crane are wrapped by the fixed frame, and the position of the tower crane can be adjusted during the movement of the fixed frame, so that the tower crane is located at the central position of the mounting seat plate 120.

[0030] In one embodiment, as shown in Figure 1 and Figure 2 A displacement slot 131 matching the connecting plate 210 is formed on the top plate 130, and a sliding groove matching the sliding block 370 is formed on the mounting seat plate 120; the width of the displacement slot 131 matches the connecting plate 210, so as to avoid interference of the movement of the fixed frame with the top plate 130, and the sliding groove matches the sliding block 370 to guide the movement of the sliding block 370.

[0031] In one embodiment, as shown in Figure 2 and Figure 3 A circular groove matching the rotating shaft 350 is formed at the center of the top plate 130 and the mounting base; the circular groove allows the rotating shaft 350 to rotate freely in the circular groove.

[0032] The above embodiment discloses an adjustable tower crane adapter, wherein pulling the pull handle 256 drives the limiting rod 253 to be separated from the limiting hole 251, thereby releasing the fixation of the second fixing frame 240, then the staff can freely pull the second fixing frame 240, after adjusting the height of the second fixing frame 240 and the limiting hole 251 and the through hole are in the same straight line, the pull handle 256 is loosened, the elastic potential energy of the limiting spring 255 is used to push the fixing ring 254 and the limiting rod 253 to be inserted into the limiting hole 251 again, the fixation of the second fixing frame 240 is completed, thereby realizing the height adjustment of the adapter, improving the versatility of the tower crane, without frequently replacing different specifications of adapters, reducing the equipment procurement cost and construction time, improving the construction efficiency and reducing the construction cost.

[0033] The above merely provides a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An adjustable tower crane transition section, comprising a base body (100), the base body (100) including four feet (101) fixed to concrete by bolts, and each foot (101) being provided with a support leg (102), the end of the support leg (102) away from the foot (101) being fixedly mounted with a mounting plate (120) via a connecting frame (110), and a top plate (130) being fixedly mounted on the upper surface of the mounting plate (120), characterized in that, The top plate (130) is provided with a fixing component (200) for fixing the tower body. The fixing component (200) includes a connecting plate (210) slidably disposed on the top surface of the top plate (130). A first fixing frame (230) is fixedly installed on the top of the connecting plate (210). An extension block (220) is provided at the right angle of the first fixing frame (230). A second fixing frame (240) is slidably disposed inside the first fixing frame (230). A limiting component (250) for fixing the second fixing frame (240) is provided on the top of one side of the extension block (220). A moving component (300) is provided below the mounting base plate (120).

2. The adjustable tower crane transition section according to claim 1, characterized in that, The limiting component (250) includes multiple limiting holes (251) opened on one side of the second fixing frame (240), and the multiple limiting holes (251) are evenly distributed from top to bottom. A through hole matching the limiting hole (251) is opened on the top of one side of the extension block (220), and a fixing sleeve (252) is fixedly provided outside the through hole. The fixing sleeve (252) is longitudinally provided with a limiting rod (25) matching the limiting hole (251) and the through hole. 3) A fixing ring (254) is fixedly sleeved on the outer wall of the limiting rod (253). A limiting spring (255) is fixedly connected between one side of the fixing ring (254) and the top of the inner cavity of the fixing sleeve (252). The limiting spring (255) is movably sleeved on the outer wall of the limiting rod (253). One end of the limiting rod (253) away from the limiting hole (251) extends through to the outside of the fixing sleeve (252) and is fixedly connected to a pull handle (256).

3. An adjustable tower crane transition section according to claim 1, characterized in that, The moving component (300) includes a support frame (310) fixedly connected to the four corners of the inner side of the connecting frame (110). Each set of support frames (310) has a lead screw (320) connected to one side via a bearing. The other end of each lead screw (320) is fixedly installed with a driven bevel tooth (330). All four sets of driven bevel teeth (330) are engaged with the same driving bevel tooth (340). The top of the driving bevel tooth (340) is fixedly connected to a rotating shaft (350).

4. An adjustable tower crane transition section according to claim 3, characterized in that, The top end of the rotating shaft (350) extends through to the top plate (130) and is fixedly connected to an extension head (360).

5. An adjustable tower crane transition section according to claim 3, characterized in that, Each of the four sets of lead screws (320) has a fixed seat fixedly sleeved on the outer wall of the end away from the support frame (310), and the top of each fixed seat is fixedly connected to the bottom of the mounting plate (120). Each of the four sets of lead screws (320) has a slider (370) threadedly connected to the outer wall, and the top of each slider (370) is fixedly connected to the bottom of the corresponding connecting plate (210).

6. An adjustable tower crane transition section according to claim 5, characterized in that, The top plate (130) has a clearance groove (131) that matches the connecting plate (210), and the mounting base plate (120) has a sliding groove that matches the slider (370).

7. An adjustable tower crane transition section according to claim 3, characterized in that, Both the top plate (130) and the mounting base have circular grooves at their centers that match the rotating shaft (350).

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